Jack McMackin


T: 202-659-8201
F: 202-659-5249

Jack McMackin began his association with Williams & Jensen in 1977 and became a Principal of the firm in 1981. Mr. McMackin’s practice encompasses diverse areas of law and public policy, including litigation, legislation and regulation. Substantive areas in which he has significant experience include transportation, pharmaceuticals, product liability, administrative law, securities regulation, antitrust, tax, and the environment.

Mr. McMackin is the co-founder and a board member of the Judicial Evaluation Institute for Economic Issues, and was the founder and Chairman of the National Asbestos Defense Resource Center. He is Chairman of a group of industrial companies known as the Energy-Intensive Manufacturers Working Group on Greenhouse Regulation. He has served on the steering committee of the Civil Justice Reform Group and on the board of the U.S. Chamber Institute for Legal Reform. During 1984 and 1985, he served as Chairman, Private Litigation Committee (Antitrust) of the Federal Bar Association. Mr. McMackin is also a member of Board of Directors of Owens-Illinois, Inc. and a member of the Arts & Letters Advisory Council of the Univeristy of Notre Dame.


  • University of Notre Dame, B.A., 1974 summa cum laude, Phi Beta Kappa
  • Yale University, School of Law, J.D., 1977

Bar Admissions

  • District of Columbia